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How to specify the feature type in the FeatureReader

Forum|Forum|11 years ago
January 24, 2014
6 replies
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tofia

Hi

I have a huge set of Las files and I just want to pick out one or more of the files and cut out a pre-defined area. The area will be defined by the user, a published parameter. I do area on area overlay, the customer defined area over a square grid to catch one or more id numbers. Know I drop the geometry and just use the attribute in this part of the workbench. Couse I figured it would take longer time to do a spatial intersection in the next part of the workbench.

I use the feature reader transformer and specify the feature type to read to the attribute above (Id number). I have defined the directory and dataset is set to *.las. I’m having problems though when I run the work bench it doesn’t fetch the Las files. The attribute is defined as 70875_7620 so I tried 70875_7620.las and no deferens.

THe transformer runs when I use the spatial intersection mode that’s way I figured out it must be the attribute.

Any Ideas?

Tofia

:)

Best answer by gio

Using a binarygrid i do following.

-With the area of interest i select the index required wich in my case is BLADNR. (in your case this yields the ID_number(s)).

-I do a dynamic feature reader on the binary grid (in my case i.e.

"H:\\My Documents\\AHN2\\ahn2_05_ruw\\geogegevens\\raster\\30f\\**\\**")

On this i expose fme_basename.

then a featuremerger on (in my case)

requestor: fme_basename and suplier: BLADNR

your case would be requestor: fme_basename and suplier: ID_number.

You dont need a parameter, just a dynamic feature reader.

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+21

fmelizard
Safer
Forum|Forum|11 years ago
January 24, 2014

Hi,

I suspect it has to do with the fact that it is a parameter, which is not known when executing.

Itay

Upvote

T

tofia
Author
Forum|Forum|11 years ago
January 24, 2014

Thank you for the fast answer!

The Id number for the grid is just un attribute and it´s selectable in FeatureReader transformer am not shore thought how the feature type attribute string itself should be written I could use the concatenater and write the hole address but that seems wrong.

My settings:

Dataset: "K: \\Sofia\\NNH\\Test_las\\*.las"

Attribute: ID_number (example 70875_7620)

Select all features (no spatial test applied)

Keep result attributes and geometry only.

Tofia